may 2017 case study: creard r 407h - cold storage, pilsen · 1900m³ cold storage (-24°c) for...
TRANSCRIPT
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Application:1900m³ Cold storage (-24°C) for food, ice cream etc.
Location:IPPE Ware House, Dysina 297, Dysina u Plzne, Czech Republic
Equipment:• Compressor:
2x Dorin H15001CS piston
• Condenser:2x Model FNH-19/52, 19kW, 52m² / 2x Goedhart CCD 43407E.t0= -32°C, tc=44°C, Q0= 4.4kW (each compressor)
DescriptionThe system was built new in Q1, 2017 and consists of two independent compres-sor racks. Each rack uses two identical compressors in parallel and two identical condensers also in parallel. On the cold side, four evaporator racks were installed, two evaporators per compressor rack. In order to make a clear performance comparison, one compressor / condenser / evaporator rack system was installed using refrigerant R-507, the other with Daikin’s Creard R-407H. Both racks are operating in parallel and are of exactly the same design.
There were no special steps needed for the R-407H system. The system was simply filled in the same, standard way as the R-507 system – the only minor exception was that a smaller TXV nozzle was used for the R-407H unit.
May 2017 Case Study: Creard R-407H - Cold Storage, Pilsen
Fig.1: Sketch of the cold storage system
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Results• The R-407H system achieved 7% higher COP vs. R-507 while the capacity
per compressor was increased from 3.2kW (R-507) to 4.4kW (R-407H).
• The discharge temperatures were increased from 89.9°C (R-507) to 109.9°C (R-407H).
Project partnersFriza spol s r.o., Kladno; KOVOSLUŽBA OTS, Praha
Daikin Chemical Europe, Düsseldorf
Fig.3: Evaporators / inside cold storage
Fig.4: New cold storage build within an existing hall
Daikin Chemical Europe GmbH
Am Wehrhahn 5040211 Düsseldorf, Germany
daikinchem.de
Fig.2: Compressor / condenser racks